Effects of partial replacement of silica with surface modified nanocrystalline cellulose on properties of natural rubber nanocomposites

• DOI: 10.3144/expresspolymlett.2012.3
• Publication Date: 2011-11-07T23:29:15Z
• Authors: S. H. Xu; J. Gu; Y. F. Luo; D. M. Jia
• Keywords: Nanocrystalline material

Nanocrystalline cellulose was modified by 3-aminopropyl-triethoxysilane (KH550).The nanocrystalline (MNCC) further investigated to partially replace silica in natural rubber (NR) composites via coagulation.NR/MNCC/silica and NR/nanocrystalline (NCC)/silica nanocomposites were prepared.Through the comparison of vulcanization characteristics, processing properties compounds mechanical properties, compression fatigue dynamic performance NR/MNCC/silica NR/NCC/silica nanocomposites, MNCC proved be more efficient than NCC.MNCC could activate process, suppress Payne effect, increase 300% modulus, tear strength hardness, reduce heat build-up set.Moreover, fine dispersion strong interfacial interaction achieved nanocomposites.The observed reinforcement effects evaluated based on results apparent crosslinking density (V r ), thermo-gravimetric (TG) scanning electron microscopic (SEM) analyses with nanocomposites.